Centrifugal separator.



PATBNTED JAN. 22, 1907.

E. w; BROOMALL. GENTRIFUGAL SEPARATOR.

APPLICATION FILED NOV. 4, 1905.

FIGJ.

INVENTQR: 6

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. UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented T811122, 1907.

Amalicatiou filed November 4, 1905." Serial No. 28,9 24.

To all whom, it: may concerl w l l Be it known that I, EDGAR W.BROQMALL, a citizen ofthe United States, and a resident of Rochester,in'the county of-Monroe and" State of New York, have invented certainnew and useful Improvements-in Centrifugal Separators, of which thefollowing is a specification.

.This invention relates to centrifugal sepa-l rators, and has for itsobject to provide a simple, compact, and efiicient device that can becheaply and easily constructed and that can be taken apart to becleaned.

In the drawings, Figure 1 is a central vertical section. Fig.2 is a planview ofone of 1 the separator-blades, and Fig. 3-is a section on theline-3 3 of Fig. 2.

The separator is inglosed in a bowl or case .1, that revolves on a shaft2. A cover 3 gives access to it. A central tube 4 conducts the freshmilk into the bottom of the bowl contact with the one next be ow it,thus leaving an annular space 10 between adjacent plates. The plates maybe stamped froma single piece of metal and the tongues 'formed bybending down the strip of metal that is removed toform the slots 8. Two

' slots are shown in each plate, and these are so placed with referenceto the plate next above .and below it that they lie midway between theslots in the other plates. (See Fig. 2.) The central openingsgf theplates are larger than the. central tube 4, so'that there is a verticalannular passage 11 through the bowl along the tube 4, as indicated bythe arrowinFig.1. i

The operation of the separator is as follows: The freshmilk that is tobe acted upon is 1ntroduced into thefseparator through the tube 4, fromwhich it flows through the perforations 5 out into the chamber 12. Inthis chamber it is subjected to the centrifugal action of theseparatorwhirling in the direction of the arrow in Fig; 2, and some ofthe cream flows back along the under side of the partition 13 to theoutside of the tube 4,

the slotsv8 into the space 10 next above, to

(which servesas cream-wall) and, thence follows the course of the arrowin Fig. 1 up through the passage '11 to the outlet 14. The

main body of the milk passes through the perforations 15 to theseparatorplates 7. In the first space 10 between the,plate 13 and thelowest plate 7 Inost-ofthecream is separated from the milk, passinginwardly along the under side of this plate 7 to the cream-wall. Thencethe milk passes upwardly through c there again spread out, and here morecream is separated frormit. Each rfiang.e 9 intercepts themilk asitis"throwii'outwardly and directs it upwardly into the space 10 next above,so 'themilk is conducted up through the separator in a tortuous courseandis; spread out ;repeatedly in-the succession -spaces 10. The blue isfinally discharged through the passage formed between the top plate 16and the cover 3,which leads to the outlets- 17-. The upper plate 16 engages the cover 3 above the outlets 17'; so that the blue milk cannotbecome mixed with the cream that passes up along the cream-wall to theoutlet 14 and at its lower end is attached to a flange 18 on the cover3. The plates are recessed at 19- to receive the ribs 6 on the tube 4and are thereby locked to thetube 4'and caused to revolvewith the bowl.When the cover 3 is removed, the blades 7 can be removed readily fromthe bowl to be cleaned by withdrawing them from the tube 4,

Whatlclaimis v A centrifugal separator comprising, a rotary bowl havingoutlets for the cream and blue milk respectively, a central verticaltube within the [bolwl andhaving apertures in its lower end ope into thebowl and provided thereabove with integral longitudinal ribs, a conicalpartition in the bottom of the bowl provided with apertures and having acentral opening of greater diameterthanthe said tube, a series of spacedconical separator-plates above the partition, having their centralopenings of greater diameter than the tube and notched to receive itsflanges; the said plates having radial slo ts in staggered relation toeach other to form a tortuous passage through the series, andspacingtongues alongside the said slots, substantially as described.

'- EDGAR W. BROOMALL.

Witn i es:

. Gunman,

L. THON.

